SET 7
| SET 7 | |
|---|---|
| |
| SET-7K | |
| Role | Trainer and reconnaissance aircraft |
| Manufacturer | SET |
| Designer | Grigore Zamfirescu[1] Dumitru Bazilu[1] Ștefan Protopopescu[1] |
| First flight | 1931 |
| Number built | 123 |
The SET 7 was a military trainer & reconnaissance aircraft that was produced in Romania in the mid-1930s. It was originally designed as a conventional single-bay biplane, with slightly staggered wings, a standard undercarriage with fixed tailskid, and a tandem open-cockpit arrangement for the pilot and instructor or observer. Power was supplied by an Armstrong Siddeley Jaguar radial engine, and, from the outset, the aircraft was equipped for wireless & photographic reconnaissance duties.
An armed version followed in 1934, adding a trainable machine gun for the observer and a fixed machine gun for the pilot. This version, the 7K, was powered by a neatly cowled Gnome-Rhône 7Ksd engine, and the 7KB (fitted with bomb racks) & 7KD were specialised subtypes that followed it. A floatplane version was produced as the 7H.
Variants
[edit]- SET 7 - initial unarmed trainer version with Armstrong Siddeley Jaguar engine (50 built, 1932–1934)[2]
- SET 7K - armed reconnaissance version with Gnome-Rhône 7Ksd/7Ksf engine (20 built, delivered by August 1936)[2]
- SET 7H - floatplane for Romanian Navy
Operators
[edit]
Specifications (7K)
[edit]Data from Jane's all the World's Aircraft 1937,[3] Romanian Aeronautical Constructions 1905–1974[4]
General characteristics
- Crew: 2
- Length: 7.15 m (23 ft 5 in)
- Upper wingspan: 9.8 m (32 ft 2 in)
- Lower wingspan: 9.5 m (31 ft 2 in)
- Height: 3.15 m (10 ft 4 in)
- Wing area: 26.6 m2 (286 sq ft)
- Empty weight: 930 kg (2,050 lb)
- Gross weight: 1,560 kg (3,439 lb)
- Powerplant: 1 × IAR-built Gnome-Rhône 7Ksf 7-cylinder air-cooled radial piston engine, 300 kW (400 hp) at 1,500 m (4,900 ft)
Performance
- Maximum speed: 251 km/h (156 mph, 136 kn) at sea level
- 255 km/h (158 mph; 138 kn) at 1,500 m (4,900 ft)
- 253 km/h (157 mph; 137 kn) at 3,000 m (9,800 ft)
- Stall speed: 92 km/h (57 mph, 50 kn)
- Service ceiling: 6,800 m (22,300 ft) service ceiling; 7,500 m (24,600 ft) absolute ceiling
- Time to altitude: 1,000 m (3,300 ft) in 2 minutes 40 seconds
- 2,000 m (6,600 ft) in 5 minutes 40 seconds
- 3,000 m (9,800 ft) in 9 minutes 5 seconds
- 4,000 m (13,000 ft) in 13 minutes 41 seconds
- 5,000 m (16,000 ft) in 19 minutes 41 seconds
Armament
- Guns: 1x fixed forward-firing synchronised 7.70 mm (0.303 in) Lewis gun with twin 7.70 mm (0.303 in) Lewis guns on a Grossu IAR ring mount in the rear cockpit
- Bombs: 300 kg (660 lb) of bombs and/or Holt flares carried under-wing
References
[edit]- ^ a b c Antoniu, Dan; Cicos, George (2007). Romanian Aeronautical Constructions (2nd ed.). Bucharest: Vivaldi. p. 239. ISBN 978-973-150-002-7.
- ^ a b c d Craciunoiu, Cristian; Axworthy, Mark; Scafeş, Cornel (1995). Third axis, fourth ally : Romanian armed forces in the European war, 1941-1945. London: Arms and Armour Press. p. 243. ISBN 1854092677.
- ^ Grey, C.G.; Bridgman, Leonard, eds. (1937). Jane's all the World's Aircraft 1937. London: Sampson Low, Marston & company, ltd. p. 255c.
- ^ Gugju, Ion; Gheorghe Iacobescu; Ovidiu Ionescu. Romanian Aeronautical Constructions 1905–1974. Brasov. pp. 158–159.
Further reading
[edit]- Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 352.
External links
[edit]
- Уголок неба
- Aviatia magazine website Archived 2016-03-03 at the Wayback Machine